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ECHO AIO

™

TEST INTERFACE

Product Manual

June 2017

© 2017 Echo Digital Audio

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Summary of Contents for AIO-2

Page 1: ...ECHO AIO TEST INTERFACE Product Manual June 2017 2017 Echo Digital Audio...

Page 2: ...SUPPLY 9 AIO A MODULE 10 MICROPHONE LINE INPUTS 10 CLASS D AMPLIFIED OUTPUTS 11 AIO L MODULE 12 MICROPHONE LINE INPUTS 12 LINE LEVEL HEADPHONE OUTPUTS 13 AIO S MODULE 14 MICROPHONE LINE INPUTS 14 SPK...

Page 3: ...microphones and other test equipment Audio test tones are played out through the AIO and the responses of the unit under test are then recorded for analysis The AIO is a modular design consisting of...

Page 4: ...utputs Line HP Outputs Imped Haptic Digital Sample Rates AIO 1 AIO A 4 2 48 96 192 kHz AIO 2 AIO A AIO A 8 4 48 96 192 kHz AIO AT AIO A AIO T 4 2 TDM 10 10 48 kHz AIO L1 AIO L 4 2 48 96 192 kHz AIO L2...

Page 5: ...tions cont AIO AT AIO Test Interface with 1 AIO A Module and 1 AIO T Module AIO L1 AIO Test Interface with 1 AIO L Module AIO L2 AIO Test Interface with 2 AIO L Modules AIO LT AIO Test Interface with...

Page 6: ...AIO S and 1 AIO A Modules AIO Dimensions and Weight all models AIO alone 17 5 44 4 cm x 8 75 22 2 cm x 1 75 4 4 cm 7 2 lbs 3 3 kg AIO in box with cables 21 53 cm x 10 25 4 cm x 5 12 7 cm 8 75 lbs 4 k...

Page 7: ...A surge protector is recommended in areas that are subject to lightning or noise from industrial equipment such as that found on a factory floor 8 Grounding Precautions should be taken so that the gro...

Page 8: ...O are all powered from the same AC power strip source which includes surge protection To improve reliability and eliminate the possibility of broken switches the AIO doesn t contain a power switch Pow...

Page 9: ...s have tabs with gold fingers that are inserted into the backplane connectors when installed Signal traces on the backplane connect the Interface Module to the analog I O modules allowing data and com...

Page 10: ...or passes the commands on to any processors on the modules themselves 4 Downloads software from the host computer onto any modules that require it 5 Stores calibration data for modules that need it in...

Page 11: ...S interfacing are software controlled Full Scale Input Voltage and Dynamic Range Gain Setting Full Scale Input Voltage Dynamic Range A weighted x1 8 75V 110dB x10 875mV 105dB x100 87 5mV 95dB THDN A w...

Page 12: ...the speaker should be connected directly across them Both the and outputs are biased at 7 5V Note Connecting a speaker or other low impedance path from one of the outputs to ground will cause the amp...

Page 13: ...S interfacing are software controlled Full Scale Input Voltage and Dynamic Range Gain Setting Full Scale Input Voltage Dynamic Range A weighted x1 8 75V 110dB x10 875mV 105dB x100 87 5mV 95dB THDN A w...

Page 14: ...ts are differential with and ground connections For headphones or other low power speakers the ground connection may be ignored Both the and outputs are biased at ground Note Driving loads smaller tha...

Page 15: ...interfacing are software controlled Full Scale Input Voltage and Dynamic Range Gain Setting Full Scale Input Voltage Dynamic Range A weighted x1 8 75V 110dB x10 875mV 105dB x100 87 5mV 95dB THDN A we...

Page 16: ...t and Dynamic Range Gain Setting Full Scale SPKR Voltage Full Scale SPKR Current Dynamic Range A weighted x1 8 75V 4 375A 110dB x10 875mV 437 5mA 105dB x100 87 5mV 43 75mA 95dB THDN A weighted 95dB 20...

Page 17: ...rs The module functions as a TDM master sourcing the clocks and synchronization signals Logic voltage levels are hardware selectable between 1 8V and 3 3V using a jumper on the PCB The TDM interface m...

Page 18: ...udio APIs Most professional audio and test applications support ASIO which Echo recommends for use with the AIO Multi AIO Synchronization Every AIO has its own internal crystal for generating the audi...

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